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1、Who Makes What: 40- & 100-Gbit/s Systems40/100G transmission embraces a range of technologies and has potentially wide applications from transoceanic networks, through the metro, and on into equipment backplanes so its long-term impact is likely to be considerable and widespread. For this Who Makes
2、What, however, the main interest is taken to be telecom network transport applications, which means essentially:40G Sonet/SDH (OC768/STM256) and the higher-rate ITU-T OTNs (OTU3/OTU4) Longer-range versions of 40 and 100G Ethernet. For more on 40/100G in equipment practice, especially ATCA, etc., see
3、 40- & 100-Gbit/s Technology & Components.The list of operators and carriers now moving to, or with, some 40G implementations now contains some big names (see Table 1 for some recent examples reported by Light Reading), although not everyone is convinced by the 40G argument (see Page 4: Sticky Quest
4、ions). In contrast, 100G is still largely experimental or trialing, but implementations are vaguely beginning, as witnessed by financial exchange NYSE Euronext and Ciena Corp. (Nasdaq: CIEN) announcing, in March 2009, plans to implement 100G networks to support NYSE Euronexts new data centers in the
5、 greater New York and London metropolitan areas during 2010.Table 1: Recent 40G Network Implementations Reported by Light Reading Carrier/operatorLocation/dateImplementationAboveNetUSa/May 200940G metro service in 15 US marketsBell CanadaCanada/September 200840G optical backbone networkChina Telecom
6、China/August 200840G transmission networkChina UnicomChina/December 200840G WDM transport networkDeutsche TelekomGermany/July 200840G DWDM core networkKPNBelgium/September 200840G upgrade to optical backbone networkLightower Fiber NetworksUSA/ June 200940G bandwidth service for carriers and large en
7、terprisesMediacom CommunicationsUSA/December 200840G upgrade to regional network supporting triple-play servicesNeos UK/March 200840G network for delivery of bandwidth-on-demand for UK businessesRascomRussia/July 200840G upgrade to long-haul optical networkRoEduNet Educational NetworkRomania/Novembe
8、r 200840G-ready network linking national educational and research facilitiesSouthern Cross CablesUSA/June 200840G upgrade to 10G terrestrial feeder to transpacific cable networkSprint NextelUSA/November 200840G transatlantic transmission trialSURF TelecomsUK/December 200840G upgrade to regional opti
9、cal data networkTelefnicaSpain/November 200840G transmission networkTelusCanada/December 200840G network upgradeTransTeleComRussia/May 200840G commercial transport network connecting Moscow and St. PetersburgTriton TelecomCaribbean/October 200840G system linking Florida, Puerto Rico, Dominican Repub
10、lic and JamaicaVirgin MediaUK/May 2008Lights 40G pathSource: Light Reading, 200940G is also hitting the data center. In late 2008, for example, Mellanox Technologies and Dell claimed the worlds first demonstration of 40G InfiniBand interconnect technology for blade servers by using Mellanoxs recentl
11、y launched InfiniBand ConnectX Adapter.The combination of hi-tech R&D, many smaller specialist companies, market evolution, and a global recession must make 40/100G one of the few current bright spots for M&A types, judging by the number of mergers, acquisitions, and similar announcements made over
12、the last year or so. Examples are: Aegis Lightwave Inc. acquired CardinalPoint Optics (April 2008 optical channel monitors) and AOFR (March 2009 fused fiber couplers) Avanex and Bookham merged (April 2009 optical components, modules and subsystems) to form Oclaro Inc. EXFO Electro-Optical Engineerin
13、g Inc. (Nasdaq: EXFO; Toronto: EXF) acquired PicoSolve (February 2009 optical sampling oscilloscopes for 40G and 100G R&D) Finisar Corp. (Nasdaq: FNSR) merged with Optium (August 2008) GigOptix Inc. (OTC: GGOX) acquired Helix Semiconductors (January 2008 optical physical-media-dependent ICs) and mer
14、ged with Lumera (March 2008 modulator technology) Opnext Inc. (Nasdaq: OPXT) acquired StrataLight Communications (January 2009 40/100G products and subsystems) Thorlabs Inc. acquired the assets of Covega (March 2009 indium-phosphide and lithium-niobate components and modules) from owners Gemfire Cor
15、p. . Previously Gemfire and Covega had merged (February 2008). This list emphasizes the point, expanded on later, that optical devices and modules are crucial to 40/100G, and are where a lot of current product development is taking place.We have tried to make the listing as complete as possible in the time available for its compilation, but this is where you, Dear Reader, can help with any companies that have been missed.Environment & Technology Basic 40G transmission systems have been around for a while in ultra-long-haul and long-haul applications, but 40G is now spreading through th
